| Titre : | Rheological behavior of cellulose fiber suspensions : application to paper - making processing (2011) |
| Auteurs : | Didier Chaussy, Auteur ; Celine Martin, Auteur ; Jean-Claude Roux, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 50 N° 6, Mars 2011) |
| Article en page(s) : | pp. 3524–3533 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Cellulose fiber |
| Résumé : | The refining operation of cellulose fibrous suspensions results in fibrillation, hydration, and shortening of fibers. To characterize the viscous behavior of such a suspension during processing, rheological properties of bleached softwood fibers are studied by considering a semi-industrial disk refiner as a parallel plate rheometer. The rheological behavior of fiber suspension is quantified and modeled using a modified Carreau−Yasuda equation. This model does not show discontinuities and enables the description of the pulp suspension behavior for the entire domain of shear rates (up to 2.1 × 106 s−1). It points out a Newtonian behavior or a combination of a Newtonian followed by a shear thinning behavior after a limiting shear rate. Moreover, the measured apparent viscosity of the fiber suspension in the gap clearance is about 100 times higher than the viscosity of individualized fibers suspension. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie101591s |
